 
(* ::Section:: *)
(* Prefactor *)
(* ::Text:: *)
(*`Prefactor` is an option for `OneLoop` and `OneLoopSum`. If set as option of `OneLoop`, the amplitude is multiplied by `Prefactor` before calculation; if specified as option of `OneLoopSum`, after calculation in the final result as a global factor.*)


(* ::Subsection:: *)
(* See also *)
(* ::Text:: *)
(*OneLoop, OneLoopSum.*)



(* ::Subsection:: *)
(* Examples *)


